Executives of Shake Shack and its parent company ring the New York Stock Exchange opening bell in January 2015. All the major stock indices are at or near record highs. Thats cause for concern only if the stock market outpaces the growth of the economy.
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http://america.aljazeera.com/opinions/2015/4/the-stock-market-isnt-in-another-bubble--yet.html
#bubbles